TY JOUR TI METHODS OF ENSURING THE ECONOMIC SECURITY OF AN ECONOMIC ENTITY FROM THE THREATS OF THE SHADOW ECONOMY KW economic security KW shadow economy KW protection from economic threats KW illegal operations KW informal activities JO Russian Journal of Management AU Bank, S.V. AU Lapaev, D.N. AU Husainov, M.K. PY 2024 IS 12 PB Publishing Center RIOR